<?php
final class Request{

	public $get = array();
	public $post = array();
	public $cookie = array();
	public $files = array();
	public $server = array();

	public function __construct() {
		/*	$_GET = $this->clean($_GET);
		 $_POST = $this->clean($_POST);
		 $_COOKIE = $this->clean($_COOKIE);
		 $_FILES = $this->clean($_FILES);
		 $_SERVER = $this->clean($_SERVER);
		 */
		$this->get = $_GET;
		$this->post = $_POST;
		$this->cookie = $_COOKIE;
		$this->files = $_FILES;
		$this->server = $_SERVER;
	}

	public function clean($data) {
		if (is_array($data)) {
			foreach ($data as $key => $value) {
				unset($data[$key]);

				$data[$this->clean($key)] = $this->clean($value);
			}
		} else {
			$data = htmlspecialchars($data, ENT_COMPAT, 'UTF-8');
		}

		return $data;
	}

	//return boolean to check ajax request.
	public function is_ajax_request()
	{
		if(!isset($this->server['HTTP_X_REQUESTED_WITH']))return false;
		return ($this->server['HTTP_X_REQUESTED_WITH'] === 'XMLHttpRequest');
	}

}
?>